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Algebra (Statistics (Correlation Coefficient: The relationship of the…
Algebra
Statistics
Correlation Coefficient: The relationship of the points. The closer to one, the stronger the relationship. Vice versa.
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Functions
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Piecewise: when the equation follows a function for a given domain interval and then follows another function for another domain interval.
Graphing
Calculator
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Systems of Equations: go to y= in a graphing calculator. press math. scroll down to the "piecewise(" option. press enter. enter your system of equations.
Inequalities: Set the inequality equal to y. Graph like a normal equation, but if it is less than or greater than, it is a dotted line. If it is less than or equal to or greater than or equal to it is a normal line. Shade up if it is greater or greater or equal to. Shade below if it is less than or less than or equal to.
System of Inequalities: where the two shades meet, it is recommended to put a "S" in that section. Any point in that area is a solution to the system of inequalities.
System of Equations: Graph both equations, where they meet is the solution to the system of equations.
Quadratics
When graphed, is a parabola.
The quadratic formula can be used to solve for x. The quadratic formula is x= −b± square root of b2−4ac, then divide by 2a.
Forms
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Vertex Form: When the function is modified from a parent function to make the vertex clear. Format is y = a(x - h)^2+ k
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